"Proposition 8 serves no purpose, and has no effect, other than to lessen the status and human dignity of gays and lesbians in California, and to officially reclassify their relationships and families as inferior to those of opposite-sex couples," states the opinion written by Judge Stephen Reinhardt, one of the court's most liberal judges.
This is the litigatory equivalent of "Ohno, you din't!"
Attorneys on both sides seem prepared to take this case to the Supreme Court, and I'd be willing to bet that at least six justices (the four liberals, Scalia and Roberts) are pawing the ground in the starting gate.
The decision applies strictly to California, even though the 9th Circuit could have extended it over all nine states in its jurisdiction.
Too, the Appeals Court relied heavily on the 1996 Supreme Court ruling which overturned a Colorado law that limited civil rights protections for homosexuals.
Taken together, these conditions may force the SCOTUS to say "Thanks, but no thanks." Not that it has a history of non-intervention (Bush v. Gore *koffkoff*) but that was a different court, almost altogether.
It's going to be an interesting year, as the kids say.